Unformatted text preview: a at
least once per week. Conduct a hypothesis test at the 10% significance level to determine whether or not less
than 40% of college students eat pizza at least once per week.
3. Half of people in the United States prefer summer to winter, but in a random sample of 50 people, you see that
21 people prefer summer to sinter. Conduct a hypothesis test at the 5% significance level to determine whether
or not the proportion of people preferring summer to winter is different than half. The Steps in Hypothesis Testing for 1 Population Proportion
1. Determine the Hypotheses
a.
b. The alternative hypothesis is one of the following: righttailed test lefttailed test twotailed test
2. Collect the Data
a. Verify that the normality criteria has been satisfied:
)
i.
and (
ii.
and
b. Calculate the sample proportion ̂ Remember: The value is the probability
that you will get a
sample proportion that
is ̂ or more extreme
than ̂ in...
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 Spring '14
 Statistics, Standard Deviation, Null hypothesis, Statistical hypothesis testing

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